User Tag List

Reply
 
Thread Tools Rate Thread Display Modes
Old 09-12-2022, 12:02 AM #1
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
Oil in plenum

Had my plenums off today to do the valve cover gaskets. First time I've had them off since I bought it. There was a layer of oil all over the inside of the upper and lower plenum and the intake manifold. I looked in the intake pipe and there was some at the very end where it attaches to the throttle bottle. Looked like maybe it was coming in from the vacuum line that attaches right there.

Any thoughts on what this could be or what things I should be looking at? I replaced the PCV valve today when I had the valve covers off but the old one didn't seem like it had failed.

Also, is there a product I can use to clean the the oil out of the intake without having to take it off the car?
__________________
1997 SR5, 3.4L, Manual
texadelphia is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 08:45 AM #2
alumarine alumarine is offline
Member
 
Join Date: Dec 2015
Location: Manitoba, Canada
Posts: 900
alumarine has a spectacular aura about alumarine has a spectacular aura about
alumarine alumarine is offline
Member
 
Join Date: Dec 2015
Location: Manitoba, Canada
Posts: 900
alumarine has a spectacular aura about alumarine has a spectacular aura about
Over time oil will settle in the bottom of the intake manifold depending on it's design.

It usually comes from the PCV. No cause for alarm.
__________________
2000 4runner 4wd Auto V6 - Tru-Cool LPD4454 trans cooler in series
1991 4runner 4wd Auto V6
1990 4runner 4wd Auto V6
alumarine is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 09:40 AM #3
jgue467's Avatar
jgue467 jgue467 is offline
Senior Member
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,145
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
jgue467 jgue467 is offline
Senior Member
jgue467's Avatar
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,145
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
Some folks like to use catch cans, here's an example:

Amazon.com: EVIL ENERGY Baffled Oil Catch Can,Oil Separator Catch Can 300ml Universal Aluminum Black : Automotive

My experience with German autos is they come with one, they give it a fancier name, Oil/Air Separator. Some autos need them more than others, especially GDI engines of which ours are far from it, so as alumarine said, nbd, in these type engines.
__________________
2001 Limited 4WD - 346+K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL - StopTech ANGLED rotors - In series 699 trans cooler, New Yota1 transmission, All new OEM suspension front to rear.
jgue467 is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 11:33 AM #4
mtbtim's Avatar
mtbtim mtbtim is offline
Elite Member
 
Join Date: Feb 2015
Location: San Jose, California
Age: 58
Posts: 5,264
Real Name: Tim
mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute
mtbtim mtbtim is offline
Elite Member
mtbtim's Avatar
 
Join Date: Feb 2015
Location: San Jose, California
Age: 58
Posts: 5,264
Real Name: Tim
mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute mtbtim has a reputation beyond repute
Quote:
Originally Posted by jgue467 View Post
Some folks like to use catch cans, here's an example:

Amazon.com: EVIL ENERGY Baffled Oil Catch Can,Oil Separator Catch Can 300ml Universal Aluminum Black : Automotive

My experience with German autos is they come with one, they give it a fancier name, Oil/Air Separator. Some autos need them more than others, especially GDI engines of which ours are far from it, so as alumarine said, nbd, in these type engines.
Yes, a catch can would be the way to keep your intake cleaner from oil blow-by. And, we have a video on how to install one.




t
__________________
"My old man is a television repairman, he's got this ultimate set of tools. I can fix it!"
mtbtim is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 12:03 PM #5
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
I never considered a catch can on a non direct injection engine.
__________________
1997 SR5, 3.4L, Manual
texadelphia is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 01:21 PM #6
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,072
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,072
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
How many miles does it have? Over time, the rings wear, and more compression leaks into the crankcase and has to come out viat that PCV system. The higher the volume, the faster it moves, and the less effective the oil/air separators get, to the point where more oil gets into the intake.

It's not even particularly a huge problem then either, up until it gets so bad that it starts smoking out the tail pipe and clogging the cat. Or need a quart of oil added every 500 miles.
__________________
'99 Highlander 5-spd manual e-locker no-running-board
SS 3" suspension lift/1" body lift/33" tires/'Snowflake' TRD Taco wheels/231mm Tundra brakes/bumpers/armor/sliders/winch/Sherpa Matterhorn rack
Manual front hubs, NWF Eco-crawler transfer case doubler, second gas tank
JohnMc is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 01:25 PM #7
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
Quote:
Originally Posted by JohnMc View Post
How many miles does it have? Over time, the rings wear, and more compression leaks into the crankcase and has to come out viat that PCV system. The higher the volume, the faster it moves, and the less effective the oil/air separators get, to the point where more oil gets into the intake.

It's not even particularly a huge problem then either, up until it gets so bad that it starts smoking out the tail pipe and clogging the cat. Or need a quart of oil added every 500 miles.
I'm just over 260K on the odometer. The exhaust never smokes and it uses maybe a half quart every 5000 miles or so.

I was more concerned with potential carbon build up on the valves but I guess because this isn't a direct injection engine the fuel spray should be keeping the valves pretty clean.
__________________
1997 SR5, 3.4L, Manual
texadelphia is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 01:33 PM #8
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,072
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
JohnMc JohnMc is offline
Senior Member
 
Join Date: Jul 2011
Location: St. Louis
Posts: 1,072
JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all JohnMc is a name known to all
Yeah, no worries. Check back in after another 260K miles, lol.
__________________
'99 Highlander 5-spd manual e-locker no-running-board
SS 3" suspension lift/1" body lift/33" tires/'Snowflake' TRD Taco wheels/231mm Tundra brakes/bumpers/armor/sliders/winch/Sherpa Matterhorn rack
Manual front hubs, NWF Eco-crawler transfer case doubler, second gas tank
JohnMc is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 02:03 PM #9
19963.4lsr5 19963.4lsr5 is offline
Elite Member
 
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,304
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
19963.4lsr5 19963.4lsr5 is offline
Elite Member
 
Join Date: Aug 2013
Location: Stouchsburg PA
Posts: 5,304
19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold 19963.4lsr5 is a splendid one to behold
GM makes a foaming upper engine cleaner that I’ve used often decarboning my old 96 Saturn SL1. Sadly the can recommends spraying through the throttle body which won’t work with air not flowing through the MAF sensor. Or mine won’t run with the inlet tube removed.

It’s just the condensing oil vapor you see from the PCV system.


Sent from my iPhone using Tapatalk
19963.4lsr5 is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 03:03 PM #10
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
Well I picked up a can of Seafoam spray with the little hook that goes between the throttle body and intake hose. I figure it can't hurt.
__________________
1997 SR5, 3.4L, Manual
texadelphia is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 04:00 PM #11
jgue467's Avatar
jgue467 jgue467 is offline
Senior Member
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,145
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
jgue467 jgue467 is offline
Senior Member
jgue467's Avatar
 
Join Date: Sep 2011
Location: Austin, Texas
Posts: 3,145
jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice jgue467 is just really nice
Quote:
Originally Posted by texadelphia View Post
I never considered a catch can on a non direct injection engine.

Even older BMW, Porsche, Audi and MBs come with one from the factory standard, much larger than the example I posted, they're Serious about it for a reason.

Interestingly enough, Kia/Hyundai GDIs don't come with one and they suffer for it.
__________________
2001 Limited 4WD - 346+K - SunfireRed\Thunder Cloud; - 265/75/16 Michelin A/T2s - Fat Pat's 1.5" BL - StopTech ANGLED rotors - In series 699 trans cooler, New Yota1 transmission, All new OEM suspension front to rear.
jgue467 is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 04:37 PM #12
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
Quote:
Originally Posted by jgue467 View Post
Even older BMW, Porsche, Audi and MBs come with one from the factory standard, much larger than the example I posted, they're Serious about it for a reason.

Interestingly enough, Kia/Hyundai GDIs don't come with one and they suffer for it.
My 2008 A4 didn't have a catch can but had an "oil separator" system integrated into the valve cover. It didn't work worth a damn though. Part of my "regular maintenance" was taking the intercooler pipes off and dumping out about 4 oz of oil at every oil change. It didn't leak a drop onto the ground but it burned up a quart every 1200 miles. I suspect that car also had bad oil control rings which likely contributed to the problem.
__________________
1997 SR5, 3.4L, Manual
texadelphia is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 05:06 PM #13
sleepydad's Avatar
sleepydad sleepydad is offline
Senior Member
 
Join Date: Jun 2017
Location: Minnesota
Posts: 1,488
Real Name: Andy ಠ_ಠ
sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of
sleepydad sleepydad is offline
Senior Member
sleepydad's Avatar
 
Join Date: Jun 2017
Location: Minnesota
Posts: 1,488
Real Name: Andy ಠ_ಠ
sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of sleepydad has much to be proud of
Quote:
Originally Posted by texadelphia View Post
My 2008 A4 didn't have a catch can but had an "oil separator" system integrated into the valve cover. It didn't work worth a damn though. Part of my "regular maintenance" was taking the intercooler pipes off and dumping out about 4 oz of oil at every oil change. It didn't leak a drop onto the ground but it burned up a quart every 1200 miles. I suspect that car also had bad oil control rings which likely contributed to the problem.
I also did a catch can back in 2020, can confirm it does catch stuff. each oil change about 2-3 ounces of black goo get cleaned out. Not a lot but stuff does get pushed out the PCV path.

https://www.toyota-4runner.org/3494875-post182.html
sleepydad is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 05:33 PM #14
brillo_76's Avatar
brillo_76 brillo_76 is offline
Elite Member
 
Join Date: May 2017
Location: Western PA
Posts: 6,012
Real Name: Jon
brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute
brillo_76 brillo_76 is offline
Elite Member
brillo_76's Avatar
 
Join Date: May 2017
Location: Western PA
Posts: 6,012
Real Name: Jon
brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute brillo_76 has a reputation beyond repute
I was never really concerned about the PCV valve venting into the intake that will coat the plenums with oil.. The last valve pan cover gasket job i did. I just cleaned them out with brake cleaner.

If your going to clean in front of your intake throttle body, you really have to be careful not to jack up the IAC valve that controls your idle. Many years ago I thought I would just clean that off with brake cleaner while the engine was running ( well after a week, my idle was working properly again) So I do not recommend that as I was lucky i didn't have to rebuild and clean the IAC out. :-(
__________________
7 3rd gens listed in the build thread (2 are parts mobiles)
Build Thread: https://www.toyota-4runner.org/3rd-g...os-builds.html
Brillo's Bucket Fluid Ex changer: https://www.toyota-4runner.org/3rd-g...ml#post3358086
Sparks Plugs Wire and Coil Information: https://www.toyota-4runner.org/3rd-g...on-5vz-fe.html
brillo_76 is offline   Reply With QuoteReply With Quote
Old 09-12-2022, 07:02 PM #15
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
texadelphia texadelphia is offline
Member
 
Join Date: Sep 2020
Location: Texas
Posts: 425
texadelphia will become famous soon enough
I didn't even think about that. Wouldn't it just clean out the IAC too though?

Sent from my moto g(7) power using Tapatalk
__________________
1997 SR5, 3.4L, Manual
texadelphia is offline   Reply With QuoteReply With Quote
Reply

Tags
attaches , intake , looked , oil , valve

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Intake Plenum on 5VZ-FE Mudflaps 3rd gen T4Rs 18 04-02-2021 03:36 PM
WTB: 3.4 Intake plenum set - KY Taylor20 Want to Buy/Trade 4 05-08-2018 04:30 PM
Fuel in plenum Daneums 3rd gen T4Rs 11 04-12-2018 06:48 PM
Plenum removal nicnmike Classic T4Rs 9 10-21-2015 02:10 PM
Oil on intake plenum? jreask 3rd gen T4Rs 11 05-16-2013 12:54 AM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 07:38 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2024 DragonByte Technologies Ltd.
***This site is an unofficial Toyota site, and is not officially endorsed, supported, authorized by or affiliated with Toyota. All company, product, or service names references in this web site are used for identification purposes only and may be trademarks of their respective owners. The Toyota name, marks, designs and logos, as well as Toyota model names, are registered trademarks of Toyota Motor Corporation***Ad Management plugin by RedTyger
 
Copyright © 2020